液晶性アゾデンドリマー吸着界面によるフォトチューナブルな極角アンカリング

抄録

We systematically studied the photo-switching of the polar anchoring at the substrate/LC interface of a photo-sensitive dendrimer-doped nematic LC. The polar anchoring energy at the interface upon photo-isomerization under illumination of UV and/or VIS lights was evaluated and discussed experimentally by means of polarization microscopy, birefringence measurements, optical second harmonic generation, and attenuated total reflection infrared spectroscopy, and theoretically based on the simple Rapini-Papoular model. We also demonstrate the continuous bulk orientation change by the photo-dynamic process through the fine control of the polar anchoring energy.